420057192106 has 8 divisors (see below), whose sum is σ = 630123665220. Its totient is φ = 210015970368.

The previous prime is 420057192019. The next prime is 420057192109. The reversal of 420057192106 is 601291750024.

It can be written as a sum of positive squares in 2 ways, for example, as 381603943081 + 38453249025 = 617741^2 + 196095^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (420057192109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6271201 + ... + 6337828.

Almost surely, 2^420057192106 is an apocalyptic number.

420057192106 is a deficient number, since it is larger than the sum of its proper divisors (210066473114).

420057192106 is a wasteful number, since it uses less digits than its factorization.

420057192106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625688.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 420057192106 in words is "four hundred twenty billion, fifty-seven million, one hundred ninety-two thousand, one hundred six".